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Supporting the use of data:From data repositories to service discovery
Mathieu d’AquinKnowledge Media Institute, The Open University
[email protected], @mdaquin
Data repositories are becoming more and more important
In education
In general
For Smart Cities
The Key Question is: How do we support the exploitation of
those data
ExamplE: The MK Data Hub
MK Data HubAnalytics
Integration
Curation
Storage
Import
Sensor Data
Local Stats
Gov. Open Data
...
Mobile Apps
Dashboards
Business Intelligence
Social Web Apps
...
Example: The MK Data Hub
MK Data HubAnalytics
Integration
Curation
Storage
Import
Find
Share Develop
GetCreate
Get Data
Create Applications with Data
Find Data
Applications (Examples)
From A Data Platform to an Experiment Platform
From A Data Platform to an Experiment Platform
From A Data Platform to an Experiment Platform
Data Services
Available Data
Ontological representation
of service capability
Ontological representation
of data characteristics
Exploitability
Applicability
Ongoing work on Applicability
… … … …
Ongoing work on Exploitability
Ontological representation
of data characteristics
Exploitability
Characteristics of the data that needs to be taken into account for exploitability:
- Validity, quality, coverage- Nature (time series, statistics, geo, etc)- Scale- Connection, complementarity to others,
uniqueness- Policies and rights
Data Rights and Policies in Data Flows
Daga et al (2015), Propagation of policies in rich data flows
Given a data flow (the application of data services), how do the licence statements propagate across the data flows?
Dataflow representation
Input Data licence
representation
Policy propagation
rules
Output Data licence
representation
Representation of policies
Data Rights and Policies in Data Flows
Daga et al (2015), Propagation of policies in rich data flows
Given a data flow (the application of data services), how do the licence statements propagate across the data flows?
Dataflow representation
Input Data licence
representation
Policy propagation
rules
Output Data licence
representation
Representation of DatAflows
Many options for the representation of workflows (including ProvO) to represent what processes are applied to data.
DataNode ontology to represent what in which way these processes actually affect data: Representation of relationships between the data artefact in input and output of the processes.
Conclusion
Service discovery requires not only an adequate representation of the data services (which is not solved) but also the adequate representation of the available data.
Including right, policy and licence aspects...
Thank [email protected]
@mdaquin
Alessandro Adamou
Enrico Daga
Carlo Allocca
Shuangyan Liu
Keerthi Thomas
Ilaria Tiddi
Emanuele Bastianelli
Need to manage data in more thoroughly
